On 09/18/2011 10:29 PM, Rusty Russell wrote:> On Fri, 16 Sep 2011 12:01:49 -0500, Anthony Liguori<aliguori@us.ibm.com> wrote:>> On 09/16/2011 11:47 AM, Pawel Moll wrote:>>> This patch, based on virtio PCI driver, adds support for memory>>> mapped (platform) virtio device. This should allow environments>>> like qemu to use virtio-based block& network devices.>>>>>> One can define and register a platform device which resources>>> will describe memory mapped control registers and "mailbox">>> interrupt. Such device can be also instantiated using the Device>>> Tree node with compatible property equal "virtio,mmio".>>>>>> Cc: Rusty Russell<rusty@rustcorp.com.au>>>> Cc: Anthony Liguori<aliguori@us.ibm.com>>>> Cc: Michael S.Tsirkin<mst@redhat.com>>>> Signed-off-by: Pawel Moll<pawel.moll@arm.com>>>>> Have you written a specification for this device?>>>> Rusty maintains a formal spec for all virtio devices at:>>>> http://ozlabs.org/~rusty/virtio-spec/>>>> The spec should be written before merging the code to make sure that there>> aren't future compatibility problems.>> A good idea, but the current spec is for PCI. I wonder if we should> move the PCI part out to an appendix and make it more general?>> Meanwhile, perhaps this would be suitable as an appendix.